.. architectures. The load coil can be typically rated as a 48V DC, 122 mA contactor coil used for EV/HEV circuits for a 48 volt bus. A typical 12 volt automotive relay coil may draw 95 mA, while a 24 volt version can draw approximately 68 ... .. protection components. The circuit in Figure 1 illustrates a solution that resolves all of these issues. Figure 1. This design idea is primarily intended to depict a novel switch architecture that can cater to extended battery range ...
.. circuit enables you to generate remote control PWM test signals with a (very) generic (and cheap) chip. A recent Design Idea ( Ref. 1 ) illustrated the application of an interesting chip (the LTC6992 ) to remote control (RC) PWM ...
.. surrounding air. This suggests it might be handy for air flow measurement. Maybe even moreso if it needed only a simple two-wire connection for both (phantom) power supply from, and signal delivery to, the supporting electronics. Please see ...
.. resistance by one step. The power supply and ground pins of the various ICs are not shown in this schematic. This simple design uses only two ICs to adjust the digital potentiometer, shown here as an example 128‑step 10K ohm ...
.. frequency to a precision current source that also accommodates grounded inputs. I recently had the opportunity to share a design ( Ref. 1 ) for frequency to current loop conversion using the versatile (if somewhat ancient) LM29x7 series. ...
.. at some point, differences in ground potential and excessive bus capacitance begin to erode noise and timing margins. This Design Idea shows how to provide fast, glitch-free optical isolation of I 2 C or SMBus signals by using a method ...
.. speed, without any applied drive. Knowing the relationship between the back emf voltage and the shaft speed, you can design a circuit to maintain any constant motor speed by monitoring the back emf voltage. But, few motors use a ...
.. designs rely on highly integrated ICs that conceal their internal operation. The type of Li-ion charger outlined in this design is, somewhat surprisingly, not readily found in a general review of available internet and YouTube resources. ...
.. a low dropout 5 V regulator. More generally, any 5 V regulator IC can be employed, so long as the dropout is under a volt. Typically, RC servos run on 6 V, though some will run on as many as 8 V. The nominal input, indicated as 6 V ...